Refrigerating xottnter



W. J. PLATTEN REFRIGERATING COUNTER Feb. 11, 1930.

Original Piied A ril 16, 1923 Reissued Feb. 11, 1930 UNITED STATESPATENT OFFICE WILLIAM J. PLATTEN, F GREEN BAY. WISCONSIN, ASSIGNOR TOEMMETT IPLAT'IEN, OF

GREEN BAY, WISCONSIN REEFR -IGEBATING GOUNTER Original 1%. 1,552,949,dated September a, 1925, Serial 110. 632,387, filed April 16, 1923.

reissue filed September 6,

, air around the articles to be cooled, in which the counter top itself,or a portion associated therewith, is maintained at a relatively lowtemperature,-and in which there is no condensation from a travelingstream of refrigerantair. Further objects are to provide a refrigeratingcounter in which the material or food may be openly and directly dislayed on top of counter, kept cool, and free rom flies, and be readilyaccessible for rapid selling, in which a minimum of insulation isrequired, and which may be easily kept in a clean and sanitarycondition, and the refrigerating elementof which may be easily installedin old counters.

Embodiments of the invention are shown in the accompanying drawings, inwhich:

Figure -1 is a sectional view through one form of refrigerating counter,such view corresponding to a section on the line 11 ofv Figure 2.

Figure '2 is a plan view of the structure shown in Figure 1 with partsbroken away.

Figures 3' and 4 are views corresponding to Figure 1 showing differentmodifications.

Figures 1 and 2 showing one form of the invention will first bedescribed. The counter 1 in this form of the invention may consist of aslab of marble which is continuous from one" side'to the other. Beneaththis counter a plurality of refrigerating pipes 2, through whichany'type of refrigerant may be passed, are located. T hese'pipcs arejoined in a unitary structure by metal 3, which is preferably castaround the pipes to form a homogeneous unit, and to provide for theready conduction of heat to the pipes. This metal is preferably ofrectangular cross section, and of elongated contour as illustrated inFigures 1 and 2. Itis held ina cork, lith or other thermal insulatingcase or packing 4 and if desired felt washers 5 may be posi- Applicationfor 1927. Serial No. 217,864.

tioned between such packing and the marble slab 1 on opposite sides ofthe metal block. Any desired support may be provided for the counter andpreferably a transparent shield 6 extends partially thereover.

In using this counter, the containers 7 for the food or other materialare placed directly upon the marble slab and over the metal block 3 asshown in Figure 1. The heat is readily conducted from these containersand from the food therein, downwardly through the slab and into themetal block and from thence through the pipes to the refrigerant.

It is to be noted that very little loss occurs in this type ofconstruction as the insulation 4 adequately protects the metal-block andcooling pipes therein. v

Figure 3 shows a further form of the device in which the counter 8 iscut away to provide an aperture adapted to receive containers 9. Thesecontainers may directly contact with the cooling pipes-10, such pipesbein carried within a channel formed in an insulating casing 11.

Figure 4 shows a further form of the device in which the counter 12 iscut away to provide a rectangular channel adapted to receive arectangular casing 13 through which the cooling medium may pass. Theupper portion of this casing 11, which is preferably of metal, is flushwith the upper portion of the counter 12. The lower portion of-thecasing and also the adjacent portions of the counter are insulated bythe elongated insulating member 14 in a manner similar to thatpreviously described.

It will be seen that refrigerating counters have been provided which areof extremely effective design, which do not depend upon continuouslycirculating cold air with consequent condensation, which may be mostlimited only as set forth in the appended claims. a

- 30 top.

I claim: a

1. A refrigerating counter comprising a permanentl ri 'd slab upon whicarticles are adapts to e positioned, a series of refrigerating ipespositioned below said slab, an elongated channeled insulated sheath forreceiving said pi es to thermally insulate them, and means or aiding inthe rapid conduction of heat from said articles to said pipes. 2. Arefrigerating counter, comprising a slab upon which articles are adaptedto be placed, a metallic block positioned in contact i with the'lowerportion of said slab and having a plurality of passages therethroughadapted for the circulation of a cooling medium, and an insulatingcasing recessed to receive said metallic block and positioned upontheunder side of said slab;

3. A refrigerating counter comprising a marble top, an elongatedpermanent metallicmember of rectangular cross section having a pluralityof refrigerating pipes embedded therein; said mem er being. ositioned incontact withlthe under side 0 said marble top, and athermally'insulating casing completely surrounding the lower and sideportions of said metallicmember and positioned in contact with the underside of said marble 4. A refrigerating counter comprising a displaysurface formed by a material sup ber,1927.

frigerating ipes positioned below said slab an elongated channeledinsulating sheath for receiving said pipes to thermally insulateduction. of heat from said articles to said pipes, and means about suchcounter adapted to prevent the circulation of air about such materialsupporting means.

8. A refrigerating counter, comprising a slab upon which articles areadapted to be placed, a metallic block positioned "in contact with thelower portion of said slab and having a plurality of passagestherethrough adapted for the circulation of a cooling me.-

dium, andan insulating casing recessed to receive said metallic block,and positioned upon the under side of said slab, and means about suchcounter adapted to prevent the circulation of air about such materialsupport- 1n means.

igned at Green Bay, county of Brown and State of Wisconsin, this 3rd dayof Septem- WILLIAM J. PLATTEN.

- porting means of a permanent nature adapted to support articles, andincluding refrigerating means adapted to cool such supporting means,,means for aiding in the rapid transfer of heat by conduction from saidarticles to said refrigerating means and insulation for saidrefrigerating means and partiallyAsurrounding the same.

5. display surface formed by a material supporting means of a permanentnature adapted to support articles, and includingrefrigerating means foraiding in the rapid transfer of heat by conduction from said articles tosaid refrigerating means and insulation for said refrigerating meanspartiall surrounding the same, and means about such counter forpreventing circulation of air about said material supporting means.

refrigerating counter comprising a display surface formedby a permanentrigid material supporting means upon which articles are adapted to bepositioned, and inmeans adapted to cool such supporting means,

refrigerating counter comprising av them, and means for aiding in therapid concluding a refrigerating conductor placed in close relation tosuch. material supporting means and adapted to cool the same, and meansfor aiding inythe rapid conduction of heat from said material supportingmeans to said refrigerating means.

7. A refrigerating counter comprising a permanentl slab upon whicharticles l'liled 65 are adapte to, positioned, a series of re-

